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1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py2; RUN: llc < %s -mtriple=i686-linux -mattr=+sse2 | FileCheck %s3 4@atomic = global double 0.000000e+00 ; <ptr> [#uses=1]5@atomic2 = global double 0.000000e+00 ; <ptr> [#uses=1]6@anything = global i64 0 ; <ptr> [#uses=1]7@ioport = global i32 0 ; <ptr> [#uses=2]8 9define i16 @f(i64 %x, double %y) {10; CHECK-LABEL: f:11; CHECK: # %bb.0:12; CHECK-NEXT: movsd {{.*#+}} xmm0 = mem[0],zero13; CHECK-NEXT: movsd {{.*#+}} xmm1 = mem[0],zero14; CHECK-NEXT: movsd %xmm1, atomic15; CHECK-NEXT: xorps %xmm1, %xmm116; CHECK-NEXT: movsd %xmm1, atomic217; CHECK-NEXT: movsd %xmm0, anything18; CHECK-NEXT: movl ioport, %ecx19; CHECK-NEXT: movl ioport, %eax20; CHECK-NEXT: shrl $16, %eax21; CHECK-NEXT: addl %ecx, %eax22; CHECK-NEXT: # kill: def $ax killed $ax killed $eax23; CHECK-NEXT: retl24 %b = bitcast i64 %x to double ; <double> [#uses=1]25 store volatile double %b, ptr @atomic ; one processor operation only26 store volatile double 0.000000e+00, ptr @atomic2 ; one processor operation only27 %b2 = bitcast double %y to i64 ; <i64> [#uses=1]28 store volatile i64 %b2, ptr @anything ; may transform to store of double29 %l = load volatile i32, ptr @ioport ; must not narrow30 %t = trunc i32 %l to i16 ; <i16> [#uses=1]31 %l2 = load volatile i32, ptr @ioport ; must not narrow32 %tmp = lshr i32 %l2, 16 ; <i32> [#uses=1]33 %t2 = trunc i32 %tmp to i16 ; <i16> [#uses=1]34 %f = add i16 %t, %t2 ; <i16> [#uses=1]35 ret i16 %f36}37